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if D= -4.5 and F= 2

what does D^2F- D =?

1 answer

To solve the expression \( D^2 F - D \) given \( D = -4.5 \) and \( F = 2 \), we first need to calculate \( D^2 \) (which is \( D \) squared) and then substitute the values into the expression.

  1. Calculate \( D^2 \): \[ D^2 = (-4.5)^2 = 20.25 \]

  2. Now, calculate \( D^2 F \): \[ D^2 F = 20.25 \times 2 = 40.5 \]

  3. Now substitute back into the expression \( D^2 F - D \): \[ D^2 F - D = 40.5 - (-4.5) = 40.5 + 4.5 = 45 \]

Thus, the value of \( D^2 F - D \) is \( \boxed{45} \).